Split fat sign

Last revised by Joachim Feger on 14 Aug 2023

Citation, DOI, disclosures and article data

Citation:

Weerakkody Y, Feger J, Abdeldjalil B, et al. Split fat sign. Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-43047

DOI:

https://doi.org/10.53347/rID-43047

Permalink:

https://radiopaedia.org/articles/43047

rID:

43047

Article created:

20 Feb 2016, Yuranga Weerakkody ◉

Disclosures:

At the time the article was created Yuranga Weerakkody had no recorded disclosures.

View Yuranga Weerakkody's current disclosures

Last revised:

14 Aug 2023, Joachim Feger ◉

Disclosures:

At the time the article was last revised Joachim Feger had no financial relationships to ineligible companies to disclose.

View Joachim Feger's current disclosures

Revisions:

7 times, by 6 contributors - see full revision history and disclosures

Systems:

Musculoskeletal, Spine

Synonyms:

Split fat sign in peripheral nerve sheath tumour
Split fat sign in peripheral nerve sheath tumours
Split fat sign in peripheral nerve sheath tumor
Split fat sign in peripheral nerve sheath tumors
Split fat sign - MRI

The split fat sign is a feature that can be seen typically on MRI images with peripheral nerve sheath tumors. It is seen as a fine rind of fat around the lesion. It is best appreciated on T1 weighted images ¹. On coronal or sagittal images (i.e. images along the direction of the nerve) a tapered rim of fat signal may be seen adjacent to the proximal and distal ends of the lesion ¹.